Holoprosencephaly in monozygotic twins – clinical and computer tomographic findings

Authors:
  • JOJohn M. Opitz
    John M. Opitz
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Abstract
Of monozygotic male twins with holoprosencephaly, one showed by computer tomographic (CAT) scan a mild type with orbital hypotelorism, flat nose, bilateral cleft lip, and cleft palate associated with an intermaxillary rubital hypotelorism, flat nose, absent nasal bridge, and median cleft lip.Lymphocyte chromosomes were apparently normal.A review of the literature shows a heterogenous patient material in that most pertinent cases involved dizygotic twins, and some of these presumably had chromosome abnormalties.

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